YOU SAID:

He couldn’t sleep, all he could think of were the creatures

INTO JAPANESE

彼は眠れなかった、彼が考えることができるのは生き物だった

BACK INTO ENGLISH

He couldn't sleep, all he could think of was a creature.

INTO JAPANESE

彼は眠れず、考えることができるのは生き物だった。

BACK INTO ENGLISH

He couldn't sleep, and it was a creature that he could think of.

INTO JAPANESE

彼は眠れず、考えることができる生き物でした。

BACK INTO ENGLISH

He was a creature who could not sleep and could think.

INTO JAPANESE

彼は眠れな生き物で、考えることができました。

BACK INTO ENGLISH

He was a sleepy creature and could think.

INTO JAPANESE

彼は眠い生き物で、考えることができました。

BACK INTO ENGLISH

He was a sleepy creature and could think.